That is a question that those in the medical community who are aware of ROHHAD are asking as well. Some researchers think that if they were to find an underlying immune or auto-immune issue involved in the development of ROHHAD, it would mean that the disease could be hereditary. At this time, research has discovered nothing definitive concerning the immune system triggering genetic mutations, or in any other way being clearly responsible for the development of the disease. So the question as to whether or not ROHHAD is hereditary remains unanswered.